docstr: Returns
  -------
  Iterator
      Iterator on sequence of data transformers
docstr_tok: ["Returns","--","--","--","-","Iterator","Iterator","on","sequence","of","data","transformers"]
code: def __iter__(self) -> Iterator[BaseDataTransformer]:
      """
      Returns
      -------
      Iterator
          Iterator on sequence of data transformers
      """
      return self._transformers.__iter__()
  
file_path: darts/darts/dataprocessing/pipeline.py
imports: from copy import deepcopy
  from typing import Iterator, Sequence, Union
  from darts import TimeSeries
  from darts.dataprocessing.transformers import BaseDataTransformer, FittableDataTransformer, InvertibleDataTransformer
  from darts.logging import get_logger, raise_if_not
label_desc: Use image node_id 8 for calling the Pipeline obj's underlying member method code with example usage: obj.__iter__() and returns: self